巻号一覧
1978 巻 (1978)
- 95 号 p. 135-
- 94 号 p. 5-
- 93 号 p. 57-
- 92 号 p. 2-
1978 巻, 94 号
選択された号の論文の3件中1～3を表示しています
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ピッチの化学構造とその性状田中 穂波, 北嶋 栄二, 田野 保, 山田 泰弘, 本田 英昌1978 年 1978 巻 94 号 p. 5-99
発行日: 1978/07/05
公開日: 2010/06/28
ジャーナル フリーChemical structure was investigated of a commercial coal tar pitch and the pitches produced in our laboratory from petroleum residues.The pitches were divided into three fractions;the benzene insoluble (BI), the benzene soluble and n-heptane insoluble (BS-HI) and the n-heptane soluble (HS), each fraction being examined by elementary analysis, MW and N.M.R.experiments.Discussion was given on the relation between the structural parameters of pitches derived from these experiments and such a property as compressive strength of baked carbon blocks containing the pitch as a binder.抄録全体を表示PDF形式でダウンロード (872K) -
萩尾 剛, 宮崎 憲治, 小林 和夫1978 年 1978 巻 94 号 p. 100-105
発行日: 1978/07/05
公開日: 2010/06/28
ジャーナル フリーEffects of holding time and pressure of hot-pressing were investigated on some properties of the coke compacts made by hot-pressing at 2000°C and 2200°C from a calcined pitch coke powder mixed with 10 wt% B2O3. The holding time was changed from 0 to 4 hr and the pressure from 70 to 400kg/cm2.
Bulk density and mechanical strength of the compacts increased and also their graphitization measured from the interlayer spacing d (002) and the appearance of 112 diffraction proceeded with the increase of holding time up to 1 hr.Above 1 hr, however, they showed almost constant values. The hot-pressing pressure gave a remarkable effect on densification and strength of the compacts, but almost no effect on graphitization.The compact with the bulk density of 2.13 g/cm3, the bending strength of 490 kg/cm2 and the d (002) spacing of 3.360Å was obtained under the condition of the pressure of 400 kg/cm2 at 2200°C. The hot-pressing temperature and pressure were known to be very important factors to prepare the dense and strong compact from the coke with B2O3 addition.抄録全体を表示PDF形式でダウンロード (1306K) -
構造, 合成および利用稲垣 道夫1978 年 1978 巻 94 号 p. 106-125
発行日: 1978/07/05
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (2983K)
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